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Finding the Fourth Proportional to 91,054.68, 125,655.96 and 50,770.96

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Solution

The fourth proportional to 91,054.68, 125,655.96 and 50,770.96 is: 70,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,054.68 : 125,655.96 = 50,770.96 : x
  2. Step 2: Convert to fraction form
    91,054.68/125,655.96 = 50,770.96/x
  3. Step 3: Cross multiply
    91,054.68x = 125,655.96 × 50,770.96
  4. Step 4: Simplify right side
    91,054.68x = 6,379,673,718.92
  5. Step 5: Solve for x
    x = 6,379,673,718.92/91,054.68
  6. Step 6: Final answer
    x = 70,064.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.